HORTICULTURE

Detailed explanation-1: -Trichomes may also complement the chemical defense of a plant by possessing glands which exude terpenes, phenolics, alkaloids or other substances which are olfactory or gustatory repellents. In essence, glandular trichomes afford an outer line of chemical defense by advertising the presence of “noxious” compounds.

Detailed explanation-2: -Trichomes occur in an array of varied forms and shapes and can interfere with herbivory through several mechanisms. High densities of trichomes on leaves and stems directly impede herbivore feeding by serving as a physical hindrance to their movement and feeding (Wilkens et al., 1996; Chu et al., 2003).